Electric soldering-iron.



T. VAN ALLER.

ELECTRIC SOLDEBING IRON.

APPLIOATIONVI'ILED MAR. 25, 1908.

925,056. Patented June 15, 1909.

Wimesses: lnvervsor Tycho Van/Her; 8 ":NW 7 I UNITED sTArEs PATENT orator.

TYOHO VAN ALLER, OF SGHENEGTADY, NEW YORK, ASSIGNOR TO GENERAL ELIIGTRIC COMPANY, A CORPORATION OF NEW YORK.

snncrnrc SOLDE'RING-IRON.

Specification of Letters Patent.

Patented June 15, .1909. 7

Application filed March 25, 1908. I Serial No. 423,124.

tric Soldering-Irons, of which the following is" a specification.

This invention relates .to electrically-heated tools such as soldering irons and the like, and has for its object the provision of a device of this character which is extremely simple in construction and which can be brought to a working temperature rapidly and efliciently, My invention relatesmore particularly to such tools as soldering ironsin which an' end or point of metal is brought up to a certain temperature.

One of the objects of my invention is to so construct a soldering iron that the tip as well as the heating unit may be easily removed and at the same time make an efiicient heatconducting joint between theunit and the ti Other objects of my invention will appear in the course of the following specification in which I have shown my invention embodied in concrete form forapurposes of illustration.

Referring to the elevation of my soldering iron; Fig. 2 is a fra mentary view partly in section Fig. 3 is a/plan" view of the heating unit. Referring again to the drawing the too comprises an elongatedsupportconsisting forms no preferably of a pipe or'tube 10 having a handle 11 secured to one end and a cup-shaped casing 12 secured to the other end. The casing 12 may be screwed to the pipe 10 as shown. This casing-is referably circular in form and provided at its outer end with a shoulder against which the heating-unit. This base is in the form of a disk of insulating material, such as porcelain or the like, and upon the outer face of the disk is secured the heating coil 15. The particular form of this heating coil forms nopart of my invention. I desire, however, to have the unit flat and to this end the wireiswound in the form of a helix 16 and carried back and .forth and then embedded in cement or the like. The particular wire used in this-unit part of my invention although I prefer to use the inoxidizable high resistance wilrli described and claimed in t e patent to Jo of this helix are at .17 and 18 and the conend in r'awing, Figure 1 IS an trio heating unit, a soldering reststhe base 14 of T. Dempster, 901,428. The terminals" ductors or flexible cords 19 are run through the support 10 and connect with these terminals. The soldering co peror tip 20 has its Working end of the wel known shape and its opposite end is preferably enlarged and cupped at 21 so as to fit over the unit 15 and cause an efficient thermal joint between the unit and the tip. A casing'22 fits over the tip and engages theenlarged-portion. The two casings 12 and 22 are held together by screws 23 in a well known manner.

It will thus be seen. that. I have provided a soldering iron which is exceedingly simple in construction having few parts which are easily assembled. The arrangement is likewise efficient and the iron is light.

While I have shown and described my invention in connection with a specific arrange- 'ment and combination of parts, it should be understood that I do not limit my invention thereto except in so far as it is limited by the scgvgje1 of the claims annexed hereto.

at I claim as new, and-desire to secure by Letters Patent of the United States, is,

1. A soldering iron comprising a flat electric heating unit, a soldering tip having one heat conductive relation with said unit throughout its area, and means for holding said parts together;

2. A soldering iron-comprising a fiat electip havingone end in heatconductive relation with said unit, and a casing surrounding said unit and holding the parts in place.

3'. .A soldering ironicomprising a tip having one end enlarged, a flat heating unit'in heat-conductive relation with said enlargement, gcther. Y

4. A soldering iron'comprising an electric heating unit,- a separable soldering tip hav-' ing one end in heat-conductive relation to said unit throughout its area, and means for holding said parts together.

5. A soldering iron com rising a flat electric heating unit, a separab e solder tip a1- and means for holding said parts to-'-' ranged in heat-conductive relationwith said?" unit, and a casing surrounding said unit holding the tip and unit together. I 6. A soldering iron comprising a se arable soldering tip having one,,end enlarge a flat heating unit in heat-conductive relation with the said enlargement, anda casing surroundmg said enlar ed end and unit and holding said parts in p ace.

mounted in gated .support having a 7. soldering iron comprising an elongated support having a handle at one end and a fiat heating unit at the'other end arranged transversely "of the support, terminals for said unit passing through the support, a sol dering tip and means for securing the same in thermal contact with the unit.

, S. A soldering iron comprising an elonhandle at one end and a casing at the other, a flat heating unit said casing transversely of the support, terminals for said unit passing through the support, a soldering tip and means for securing the same in heat-conductiv'e relation with the unit.

said rst casing to hold 9. A soldering iron comprising an elongated support having a handle at one end and a casing at the other, a flat heating unit mounted in said casing, terminals for the unit passing through the support, a soldering tip having an enlarged end, and a casing enga ing said large end and cooperating with the tip and unit together.

Irrwitness whereof I have hereunto set my hand this 2dth day of March 1908. i

- TYCHO VAN ALLER. Witnesses:

v BENJAMIN B. HULL, HELENVORFORD. 

